CN212247223U - An electrolytic ozone generator - Google Patents

Abstract

The utility model discloses an electrolytic ozone generator, which comprises a cavity, an electrode sheet and a diaphragm arranged inside the cavity, the electrode sheet includes a positive electrode sheet and a negative electrode sheet; two ends of the cavity are respectively provided with There is a water inlet and a water outlet; one side of the diaphragm is parallel to the positive plate, and the other side of the diaphragm is parallel to the negative plate; the positive plate, the negative plate and the An annular diversion channel is arranged between the periphery of the diaphragm and the inner wall of the cavity; a water flow distribution space is arranged between the water inlet and the electrode sheet at the water inlet end, and the water flow distribution space is respectively connected to the annular diversion space. The channel is communicated with the through hole on the electrode sheet at the water inlet end; the positive electrode sheet and the negative electrode sheet are electrically connected through the water body flowing through them. The ozone generator can quickly take away the prepared ozone, increase the amount of ozone dissolved in water, thereby increasing the ozone concentration, and has stable operation performance and low energy consumption, which is beneficial to the heat dissipation of the electrode sheet.

Description

An electrolytic ozone generator

technical field

The utility model relates to the technical field of ozone electrolysis devices, in particular to an electrolytic ozone generator.

Background technique

Ozone (O ₃ ) is an allotrope of oxygen (O ₂ ), a pale blue gas with a characteristic odor. Ozone is a strong oxidant. Because of its strong oxidizing ability, it has a strong sterilization and disinfection effect. Therefore, ozone is recognized as a broad-spectrum and efficient sterilization and disinfection agent in the world. It will produce secondary pollution, so it is a green and environmentally friendly disinfectant.

At present, ozone is widely used in many countries and regions, such as drinking water purification, medical water disinfection, air purification, food purification, sewage treatment, planting and breeding, paper bleaching and other industries and fields. However, due to ozone It is easy to self-decompose and is not easy to store, so when using ozone, it is generally made and used. At present, the main methods of preparing ozone include corona method, electrolysis method, ultraviolet method, nuclear radiation method, plasma method and so on. The ozone generation technologies that have been put into use in food, hospital and pharmaceutical companies mainly include corona discharge method and electrolysis method. The corona discharge method is a method of generating ozone by passing the dry oxygen-containing gas through corona high-voltage discharge. This technology produces a large amount of ozone and can realize industrial production, but there are also many shortcomings. In the process of preparing by corona method, since the gas needs to be dried, it needs to be equipped with excellent gas drying and generating device and cooling system, which leads to large equipment, high investment cost, and inconvenient to move, and the output ozone concentration is very high. Low, the ozone volume ratio is 1% to 6%, and the ozone mixture contains a certain amount of carcinogenic substances such as nitrogen oxides; the use of high-voltage discharge makes the electrode also very easy to damage.

At present, in the method for preparing ozone by low-pressure electrolysis of water, an ion exchange membrane and cathode and anode catalyst membranes are mainly used to form a membrane electrode assembly, and the membrane electrode assembly is used to electrolyze water to generate ozone. For example, the invention patent with the authorization announcement number CN107177861B discloses an ozone generator nozzle, which is provided with a positive electrode electrolysis chamber and two negative electrode electrolysis chambers that are independently separated, wherein the positive electrode electrolysis chamber is in the middle position inside the chamber, and the two The negative electrode electrolysis chamber is located on the left and right sides of the positive electrode electrolysis chamber. A positive electrode plate, a diaphragm and a negative electrode plate are arranged between the positive electrode electrolytic chamber and the negative electrode electrolytic chamber, wherein the positive electrode plate is located inside the positive electrode electrolytic chamber, the negative electrode plate is located inside the negative electrode electrolytic chamber, and the connected positive electrode electrolytic chamber and the negative electrode electrolytic chamber pass through Diaphragms with insulating properties are isolated from each other. Since the membrane of the shower head is closely attached to the electrode, it is difficult to make the ozone water produced by electrolysis flow, so the heat dissipation performance is poor, and the concentration of ozone water produced per unit area cannot be increased.

For example, the invention patent application with the application publication number CN109487293A discloses an ozone electrolysis chamber electrolysis structure. When the ozone electrolysis chamber electrolysis structure electrolyzes the electrolytic solution, the water body enters the interior of the electrolysis chamber from the water inlet end, and then passes through the water inlet end of the electrolysis chamber. The through hole of the electrode sheet enters the gap between the electrode sheet and the diaphragm at the water inlet end, and then flows through the through hole of the diaphragm or the gap of the diaphragm to the gap between the diaphragm and the electrode sheet at the water outlet end, and then flows from the electrode sheet at the water outlet end. The gap flows outward to the water outlet or flows toward the water outlet through the through holes of the electrode sheet at the water outlet. The above structure has the following shortcomings:

1. During the electrolysis process of the ozone electrolysis chamber electrolysis structure, after the water flow enters the electrolysis chamber through the water inlet end, all the water flow directly impacts the water inlet end electrode sheet, so that the water inlet end electrode sheet has a large floating range, which affects the stability of the voltage, making the Electrolysis operation performance is unstable.

2. During the process of water flow in the electrolysis chamber, the diaphragm and the electrode sheet at the water outlet are both impacted by the water flow, so that the distance between the electrode sheet and the diaphragm at the water inlet end and the distance between the electrode sheet and the diaphragm at the water outlet end are all affected. becomes larger, the working voltage increases, and the energy consumption increases.

3. During the electrolysis process of the electrolysis structure of the ozone electrolysis chamber, the water flow speed is slow, which is not conducive to taking away the ozone produced by electrolysis and the heat dissipation of the electrode sheets.

Utility model content

The purpose of this utility model is to overcome the above-mentioned problems, and to provide an electrolytic ozone generator, which has stable operation performance, low energy consumption, and is beneficial to the heat dissipation of the electrode sheet in the process of preparing ozone; and can be quickly taken away. The prepared ozone increases the dissolved amount of ozone in water, thereby increasing the ozone concentration.

The purpose of the present utility model is achieved through the following technical solutions:

An electrolytic ozone generator, comprising a cavity, an electrode sheet and a diaphragm arranged inside the cavity, wherein the electrode sheet includes a positive electrode sheet and a negative electrode sheet, and the diaphragm is arranged between the positive electrode sheet and the diaphragm. between negative plates; wherein, the two ends of the cavity are respectively provided with a water inlet and a water outlet; one side of the diaphragm is parallel to the positive plate, and the other side of the diaphragm is opposite to the negative electrode The plates are parallel to each other; it is characterized in that the positive and/or negative plates are provided with through holes, and the diaphragms are non-through-hole diaphragms; An annular diversion channel is arranged between the inner walls of the cavity; a water flow distribution space is arranged between the water inlet and the electrode sheet at the water inlet end, and the water flow distribution space is respectively connected with the annular diversion channel and the water inlet end. The through holes on the electrode sheet are connected; the positive electrode sheet and the negative electrode sheet are electrically connected through the water body flowing through them.

The working principle of the above-mentioned electrolytic ozone generator is:

When working, the water body enters the cavity from the water inlet and reaches the water distribution space, which is divided into two paths. Electrolysis is carried out, and this part of the water body flows around the diaphragm and enters the annular diversion channel under the blocking of the diaphragm, and then part of the water body enters between the electrode sheet and the diaphragm at the water outlet for electrolysis. During the electrolysis process, the positive electrode sheet is electrolyzed to produce ozone. , the negative electrode sheet is electrolyzed to generate hydrogen; after the other water body enters the water flow distribution space, under the blocking of the electrode sheet at the water inlet end, the water flow spreads around and enters the annular diversion channel; The size relationship of the cross-section of the through hole of the electrode sheet at the end can make the water flow velocity of the annular diversion channel greater than the water flow velocity between the electrode sheet and the diaphragm, so that the Venturi effect occurs in the annular diversion channel, and the high-speed flow in the annular diversion channel is caused. A low pressure is generated near the water body, causing a pressure difference between the gap between the electrode sheet and the diaphragm and the annular diversion channel. Therefore, the water flow in the annular diversion channel has an adsorption effect, and the ozone and ozone water generated by electrolysis on the positive plate are adsorbed. Entering the annular diversion channel, the prepared ozone can be quickly taken away, the amount of ozone dissolved in water can be increased, and the ozone concentration can be increased. Complete the ozone preparation. At the same time, the high-speed flowing water body in the annular diversion channel is also conducive to accelerating the heat of the electrode sheet and improving the heat dissipation effect.

In a preferred solution of the present invention, the end face of the positive electrode sheet faces the water inlet, and the end face of the negative electrode sheet faces the water outlet. That is to say, the positive electrode piece is arranged at the water inlet end, and the negative electrode piece is arranged at the water outlet end. The advantage of adopting the above structure is that when the water body enters the water flow distribution space, a part of the water body enters the gap between the positive electrode plate and the diaphragm through the through hole of the positive electrode sheet for electrolysis, and a part of the water body enters the annular diversion channel from the water flow distribution space, and the water body enters the annular diversion channel from the water flow distribution space. The annular diversion channel flows rapidly, forming a negative pressure adsorption effect, and taking away the positive electrode plate in time to generate ozone and ozone water; since the positive electrode plate is arranged at the water inlet end of the cavity, the flow velocity of the annular diversion channel at the water inlet end is faster, thereby further Improve the ability and speed of the annular diversion channel to adsorb ozone, and increase the amount of ozone dissolved in water; in addition, because the membrane is a structure without through-holes, all the water entering the gap between the positive plate and the membrane must be diverted from the annular It can flow away in the channel, so that all the ozone generated by the electrolysis of the positive electrode sheet can be taken away, and the dissolved amount of ozone in water can be further improved. At the same time, a part of the water body passes through the through holes of the electrode sheet, and a part flows through the annular diversion channel. The flow of the two water bodies plays a cooling role, especially the fast-flowing water body in the annular diversion channel is more conducive to the positive electrode plate. heat dissipation, thereby improving the stability of electrolysis, thereby improving electrolysis performance.

In a preferred solution of the present invention, the electrolytic ozone generator further includes a water inlet assembly located at the water inlet end of the cavity; the water inlet assembly includes a water inlet pipe and is provided on the water inlet pipe for adjusting An adjustment port for water flow velocity and pressure, one end of the water inlet pipe is connected to the water source, and the other end is connected to the water inlet; the water body branched from the adjustment port is returned to the water source. With the above structure, when the power of the electrode sheet is too large, the electrode sheet is seriously heated, and the adjustment port is set to increase the water flow speed of the water inlet pipe, so as to take away the heat of the electrode sheet, play a cooling role, and also stabilize the power. The service life of the electrode sheet is improved; in addition, speeding up the flow rate is also beneficial to improving the ability of the annular diversion channel to adsorb ozone.

Further, the adjusting port is provided with steel balls with notches for adjusting the water flow, and the water flow can be adjusted by replacing the steel balls with different sizes of notches.

In a preferred solution of the present invention, the through holes of the positive electrode sheet and the negative electrode sheet are aligned with each other and their axial projections overlap.

In a preferred solution of the present invention, the through holes of the positive electrode sheet and the negative electrode sheet are mutually staggered and the axial projections do not overlap.

Preferably, there are multiple through holes between the positive electrode sheet and the negative electrode sheet. The advantage is that the contact area between the water body and the surface of the positive electrode sheet or the negative electrode sheet is further improved, and the electrolysis efficiency is promoted.

Further, the area of the through holes of the positive electrode sheet or the negative electrode sheet accounts for 5%-80% of the total area of the positive electrode sheet or the negative electrode sheet. The advantage of this arrangement is that it improves the heat dissipation area between the water body and the positive electrode sheet and the negative electrode sheet. On the one hand, it promotes the ozone electrolysis efficiency of the positive electrode sheet and prepares ozone water with a higher concentration. On the other hand, it improves the heat dissipation efficiency and increases the current density by 10%. Do not burn the diaphragm, further improve the service life of the diaphragm.

In a preferred solution of the present invention, a displacement buffer area for buffering displacement of the positive electrode sheet or the negative electrode sheet is provided between the positive electrode sheet or the negative electrode sheet and the inner wall of the cavity. When the water pressure is too large or too small, the displacement buffer zone can automatically adjust the distance between the positive electrode sheet or the negative electrode sheet according to the water pressure, so that the distance between the two tends to be stable, thereby increasing the positive electrode sheet or the negative electrode sheet. scour force.

Preferably, the displacement buffer zone is provided with a buffer component for buffering the water pressure on the positive electrode sheet or the negative electrode sheet.

Further, the buffer component is an elastic member, the elastic member is axially arranged, one end acts on the positive electrode sheet or the negative electrode sheet, and the other end acts on the inner wall of the cavity. By arranging elastic parts, the gap between the positive electrode or the negative electrode can be automatically adjusted with the diaphragm according to the different water pressures in the cavity, so that the cavity can adapt to different water intake and work normally without damaging the positive electrode or the negative electrode It ensures that the electrolysis process of the positive electrode sheet and the negative electrode sheet tends to be stable, reduces energy consumption, and can also effectively protect the positive electrode sheet or the negative electrode sheet and improve the service life.

Preferably, the elastic member is any one of a spring, a tower spring or a shrapnel.

Preferably, the membrane is a PEM membrane, and the PEM membrane has good proton conductivity and good electrochemical stability.

Preferably, the through holes of the positive electrode sheet and/or the negative electrode sheet are any one of a circle, a triangle, a rectangle, a trapezoid, a square, a parallelogram, a rhombus, or an irregular shape.

Preferably, the negative electrode sheet is any one of stainless steel, carbon material, various metal materials, metal oxides, non-metallic conductive materials and composite materials; the positive electrode sheet material is diamond, platinum, titanium, electrolytic hydropower Any of extremely wear-resistant materials, or conductive ceramics, semiconductors, carbon materials, graphite materials and other metal materials.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the present utility model, due to the arrangement of the water distribution space, the water body flows into two paths after entering the cavity, and one water body flows through the through hole of the electrode sheet at the water inlet end of the cavity and flows between the electrode sheet and the diaphragm at the water inlet end. Electrolysis is carried out in the gap between the two parts, and the other way flows from the annular diversion channel. Since the membrane is a non-porous structure, it blocks the water body passing through the through hole, so that the water body has a slower flow velocity there, while the water body in the annular diversion channel has a higher flow velocity. Fast, so that the Venturi effect occurs in the annular diversion channel, and low pressure is generated near the high-speed flowing water body, resulting in a pressure difference between the gap between the cavity electrode sheet and the diaphragm and the annular diversion channel. The water flow of the electrode sheet has an adsorption effect on the water body in the gap between the electrode sheet and the diaphragm, and the ozone generated by the electrolysis on the positive electrode sheet and the ozone water are adsorbed into the annular diversion channel, which can quickly take away the prepared ozone and increase the amount of ozone dissolved in water. , thereby increasing the ozone concentration.

2. In the present utility model, when the water body enters the water distribution space, a part of the water body passes through the through holes of the positive electrode sheet or the negative electrode sheet, and a part flows from the annular diversion channel, and the positive electrode sheet and the negative electrode sheet generate a large amount of heat during the electrolysis process. , the flow of the two water bodies plays a role in cooling the positive electrode sheet or the negative electrode sheet. More importantly, the water body flows rapidly in the annular diversion channel, which can take away the heat of the positive electrode sheet or the negative electrode sheet more quickly, which not only improves the The stability of electrolysis also improves the service life of the positive electrode and the negative electrode.

3. In this utility model, since the positive electrode sheet or the negative electrode sheet is provided with a through hole, the effective contact area between the water body and the electrode sheet becomes larger, the electrolysis efficiency is improved, and the ozone water with higher concentration can be prepared, and the electrode sheet can also be improved. The heat dissipation efficiency is improved, thereby improving the service life of the electrode sheet.

4. In the present utility model, when the water body enters the gap between the electrode sheet and the membrane sheet at the water inlet end from the through hole of the electrode sheet at the water inlet end, since the membrane sheet is a non-through-hole membrane sheet, the water body is in the membrane sheet. Under the blocking action of the diaphragm, the diaphragm will move backwards due to the impact force of the water body. Although the gap between the diaphragm and the electrode plate at the water inlet end becomes larger, due to the blockage of the diaphragm, the electrode at the water outlet end is blocked. The sheet is not subjected to the impact force in the axial direction, so that the fluctuation distance between the positive electrode sheet and the negative electrode sheet is greatly reduced, thereby reducing the working voltage and reducing the energy consumption.

5. In this utility model, after the water flow enters the water flow distribution space through the water inlet end, a part of the water body passes through the through holes of the positive electrode sheet or the negative electrode sheet, and a part flows from the annular diversion channel, thereby reducing the impact on the water inlet end electrode sheet. The impact force greatly reduces the floating range of the electrode sheet at the water inlet, improves the stability of the voltage, and makes the electrolysis performance more stable.

Description of drawings

1 to 3 are schematic structural diagrams of the first specific embodiment of an electrolytic ozone generator in the present invention, wherein, FIG. 1 is a perspective view, FIG. 2 is a right side view, and FIG. 3 is a front view.

4 is a vertical cross-sectional view of an electrolytic ozone generator in the utility model.

FIG. 5 is a schematic diagram of the internal structure of the cavity in the present invention.

Fig. 6-Fig. 7 is a structural schematic diagram of the third specific embodiment of an electrolytic ozone generator in the present invention, wherein, Fig. 6 is a perspective view of omitting the water inlet assembly and the spring, and Fig. 7 is the interior of the cavity A perspective view of the structure.

8 is a schematic structural diagram of a fourth specific embodiment of an electrolytic ozone generator in the present invention.

Detailed ways

In order for those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1

Referring to FIGS. 1-5 , an electrolytic ozone generator in this embodiment includes a cavity 1 , a positive electrode sheet 2 arranged inside the cavity 1 , a negative electrode sheet 3 , and a positive electrode sheet 2 and a negative electrode sheet 3 arranged inside the cavity 1 . The membrane 4 for proton exchange between the negative plates 3, the water inlet assembly 5 disposed at one end of the cavity 1 close to the positive plate 2, and the water inlet assembly 5 disposed at the end of the cavity 1 close to the negative plate 3 Spring 6; wherein, one end of the spring 6 acts on the negative electrode plate 3, and the other end acts on the inner wall of the cavity 1; the water inlet end of the cavity 1 is provided with a water inlet, and the water outlet end is provided with A water outlet, the water inlet is communicated with the water inlet assembly 5, the positive electrode sheet 2 is close to the water inlet, and the negative electrode sheet 3 is close to the water outlet. By setting the spring 6, when the water pressure is too large or too small, the distance between the negative electrode piece 3 and the positive electrode piece 2 can be automatically adjusted under the action of the spring 6 according to the different water pressure in the cavity 1, so that the distance between the two can be adjusted automatically. The distance between them tends to be stable, so that the cavity 1 can adapt to different water inflows and work normally without damaging the negative electrode sheet 3, which ensures the stability of the electrolysis process of the positive electrode sheet 2 and the negative electrode sheet 3, and reduces energy consumption at the same time. , it can also effectively protect the negative electrode sheet 3 and improve the service life of the negative electrode sheet 3 and the positive electrode sheet 2 .

Referring to FIG. 1 to FIG. 5 , the outlines of the cavity 1 , the positive electrode 2 , the negative electrode 3 and the diaphragm 4 are all rectangular, and one of the sides of the diaphragm 4 is connected to the positive electrode. The sheet 2 is parallel and opposite, and the other side of the diaphragm 4 is parallel and opposite to the negative electrode sheet 3; the positive electrode sheet 2 is provided with a circular first through hole 2-1, and the first through hole 2-1 The number is 6, which are evenly arranged on the positive electrode sheet 2 in two rows; the negative electrode sheet 3 is provided with second through holes 3-1, and the number of the second through holes 3-1 is 6, Evenly arranged in two rows on the negative electrode sheet 3, the first through hole 2-1 and the second through hole 3-1 are aligned with each other and the axial projection overlaps; the diaphragm 4 is without through holes Diaphragm 4. By adopting the above structure, by providing a plurality of through holes, the surface contact area between the water body and the positive electrode sheet 2 and the negative electrode sheet 3 can be effectively promoted, which can not only promote the electrolysis efficiency but also prepare ozone water with a higher concentration, so that the electrolysis products can be discharged circumferentially as soon as possible. It will not produce inhibitory effect, improve heat dissipation efficiency and reduce energy consumption. With the structure of non-porous membrane 4, when the water body enters the gap between the positive electrode sheet 2 and the membrane sheet 4 from the through hole of the positive electrode sheet 2, since the membrane sheet 4 is a non-porous membrane sheet 4, the water body is in the membrane sheet 4. The diaphragm 4 will be moved backward by the impact force of the water body, although the gap between the diaphragm 4 and the positive plate 2 becomes larger, but due to the blocking of the diaphragm 4, the negative plate 3 does not have Under the impact force in the axial direction, the distance between the positive electrode sheet 2 and the negative electrode sheet 3 tends to be stable, thereby ensuring the stability of the voltage and further reducing the energy consumption.

Referring to FIGS. 1-5 , there is a peripheral annular gap around the positive electrode sheet 2 , the negative electrode sheet 3 and the diaphragm 4 and the inner wall of the cavity 1 , and the peripheral annular gap constitutes an annular guide channel 7 ; The ratio of the area of the first through hole 2-1 to the area of the annular diversion channel 7 is between 0.1 and 1; a water flow distribution space 8 is provided between the water inlet and the positive electrode sheet 2, so The water flow distribution space 8 is communicated with the annular diversion channel 7; the positive electrode sheet 2 is connected with the positive electrode of the power supply, the negative electrode sheet 3 is connected with the negative electrode of the power supply, and between the positive electrode sheet 2 and the negative electrode sheet 3 Electrical connection is achieved through a body of water (electrolytic solution). The power supply of the positive electrode sheet 2 and the negative electrode sheet 3 is turned on, so that the water body in the cavity 1 is electrolyzed, the positive electrode sheet 2 is electrolyzed to generate ozone, and the negative electrode sheet 3 is electrolyzed to generate hydrogen. Due to the provision of the water distribution space 8 , the water flows into two paths after entering the cavity 1 . Electrolysis is carried out in the gap between the two parts, and the other way flows from the annular diversion channel 7. Since the diaphragm 4 is a non-porous structure, it blocks the water body passing through the first through hole 2-1, so that the water body has a slower flow velocity there, and in the annular shape The flow velocity of the water body in the diversion channel 7 increases, so that the Venturi effect occurs in the annular diversion channel 7, and a low pressure is generated near the high-speed flowing water body, so that a pressure difference is generated between the middle of the cavity 1 and the annular diversion channel 7. Therefore, the annular diversion channel 7 produces a pressure difference. The water flow in the flow channel 7 produces adsorption, and the gas generated by electrolysis on the positive electrode sheet 2 or the negative electrode sheet 3 and the ozone water are adsorbed into the annular diversion channel 7, which can quickly take away the prepared ozone and increase the amount of ozone dissolved in water. This in turn increases the ozone concentration.

Referring to FIGS. 1-5 , the space between the negative electrode sheet 3 and the inner wall of the cavity 1 constitutes a displacement buffer area 9 for the negative electrode sheet 3 to perform displacement buffering, and the spring 6 is arranged in the displacement buffering area. On the zone 9, when the water pressure is too large or too small, the displacement buffer zone 9 can automatically adjust the distance between the positive electrode sheet 2 or the negative electrode sheet 3 according to the water pressure, so that the distance between the two tends to be stable, Thus, the effect of the scouring force of the positive electrode sheet 2 or the negative electrode sheet 3 is increased.

1-5, the water inlet assembly 5 includes a water inlet pipe 5-1 and an adjustment port 5-2 arranged on the water inlet pipe 5-1 for adjusting the speed and pressure of the water flow. The water inlet pipe 5- One end of 1 is connected to the water source, and the other end is connected to the water inlet; the water body from the adjustment port 5-2 flows back to the water source; Steel balls can adjust the water flow by replacing steel balls with different sizes of notches. With the above structure, when the power of the positive electrode sheet 2 is too large, the positive electrode sheet 2 is seriously heated. By setting the adjustment port 5-2 to adjust, the water flow speed of the water inlet pipe 5-1 is increased, so that the heat of the positive electrode sheet 2 is taken away, and the flow rate of the water inlet pipe 5-1 is increased. In addition, speeding up the flow rate is also conducive to improving the ability of the annular diversion channel 7 to absorb ozone.

1-5, the area of the first through hole 2-1 of the positive electrode sheet 2 accounts for 5%-80% of the total area of the positive electrode sheet 2; the area of the second through hole 3-1 of the negative electrode sheet 3 accounts for 5%-80% of the total area of the positive electrode sheet 2 The total area of the negative electrode sheet 3 is 5%-80%. The advantage of this arrangement is that the heat dissipation area between the water body and the positive electrode sheet 2 and the negative electrode sheet 3 is increased, on the one hand, the ozone electrolysis efficiency of the positive electrode sheet 2 is promoted, and ozone water with a higher concentration is prepared, on the other hand, the heat dissipation efficiency is improved, and the current density is increased. 10% without burning the diaphragm 4, which further improves the service life of the diaphragm 4.

Referring to FIGS. 1-5 , the buffer component is an elastic member, which is axially arranged, one end acts on the positive electrode sheet 2 or the negative electrode sheet 3 , and the other end acts on the inner wall of the cavity 1 . By arranging the elastic member, according to the different water pressures in the cavity 1, the gap between the positive electrode sheet 2 or the negative electrode sheet 3 can be automatically adjusted with the diaphragm 4, so that the cavity 1 can adapt to different water intake and can work normally without The positive electrode sheet 2 or the negative electrode sheet 3 is not damaged, which ensures that the electrolysis process of the positive electrode sheet 2 and the negative electrode sheet 3 tends to be stable, which can effectively protect the positive electrode sheet 2 or the negative electrode sheet 3 and improve the service life while reducing energy consumption.

1-5, the positive electrode sheet 2 is made of diamond, the negative electrode sheet 3 is made of stainless steel, and the membrane sheet 4 is a PEM film. The PEM film has good proton conductivity and good electrochemical stability.

Referring to Figure 1-Figure 5, the working principle of the above-mentioned electrolytic ozone generator is:

During operation, the water body is transported through the water inlet pipe 5-1, enters the cavity 1 from the water inlet, and reaches the water distribution space 8, and is divided into two paths. The gap between the positive electrode sheet 2 and the membrane sheet 4 at the water inlet end is electrolyzed, and this part of the water body flows around the membrane sheet 4 into the annular diversion channel 7 under the blocking of the membrane sheet 4, and then part of the water body enters the negative electrode at the water outlet end. Electrolysis is performed between the sheet 3 and the diaphragm 4. During the electrolysis process, the positive electrode sheet 2 is electrolyzed to generate ozone, and the negative electrode sheet 3 is electrolyzed to generate hydrogen; because the diaphragm 4 is a non-porous structure, it blocks the passage from the positive electrode sheet 2 at the water inlet end. The water body passing through the hole makes the water body flow rate slow; after the other water body enters the water flow distribution space 8, under the blocking of the positive electrode sheet 2 or the negative electrode sheet 3 located at the water inlet end, the water flow spreads around and enters the annular diversion Channel 7. By adjusting the size relationship between the cross-section of the annular diversion channel 7 and the cross-section of the through hole of the electrode sheet at the water inlet end, the water flow velocity of the annular diversion channel 7 can be made greater than the water flow velocity between the electrode sheet and the diaphragm 4, so that the annular diversion The Venturi effect occurs in the channel 7, and a low pressure is generated near the high-speed flowing water body in the annular diversion channel 7, so that a pressure difference is generated between the gap between the electrode sheet and the diaphragm 4 and the annular diversion channel 7. Therefore, the annular diversion channel The water flow in 7 produces an adsorption effect, and the ozone and ozone water generated by electrolysis on the positive electrode sheet 2 are adsorbed into the annular diversion channel 7, which can quickly take away the prepared ozone, increase the amount of ozone dissolved in water, and then increase the ozone concentration. After being transported by the annular diversion channel 7, the ozone and ozone water are finally discharged from the water outlet of the cavity to complete the preparation of ozone. At the same time, the high-speed flowing water in the annular diversion channel 7 is also beneficial to accelerate the heat of the electrode sheet and improve the heat dissipation effect.

The flow rate of the annular guide channel 7 can be adjusted by adjusting the port 5-2. When the power of the positive electrode sheet 2 and the negative electrode sheet 3 is too large and the heat generation is serious, the flow rate of the annular guide channel 7 can be increased by increasing the flow rate of the positive electrode sheet 2 and the negative electrode sheet. The heat dissipation of the negative electrode; because the positive electrode sheet 2 is close to the water inlet, the flow velocity of the water inlet end of the annular diversion channel 7 is faster, thereby further improving the ability of the annular diversion channel 7 to absorb ozone and increasing the amount of ozone dissolved in water.

Referring to the following table, the technical solutions in this embodiment are tested and compared with the other two technical solutions, and the materials used for the positive electrode sheet 2, the membrane sheet 4 and the negative electrode sheet 3 used in the two technical solutions are all the same, wherein , Table 1 is a test comparison between this embodiment and the first technical solution (patent authorization bulletin number is CN107177861B), and the test conditions are: the area of the electrode sheet of the first technical solution is twice that of this embodiment, and the water flow and water temperature Unchanged, changing the water conductivity test power consumption and concentration. Table 2 is a test comparison between this embodiment and the second technical solution (patent application publication number is CN109487293A). The test conditions are: the area of the electrode sheet of the second technical solution is the same as the area of the electrode sheet of this embodiment, and the current density In the same way, the water flow and water temperature are unchanged, and the water conductivity is changed to test the power consumption and concentration.

Table 1

Table 2

It can be known from the test data that the test results in Table 1 are: the technical solution of this embodiment is compared with the first technical solution. In the same water environment, this embodiment reduces the area of the electrode sheet by 50%. Under the same current, The ozone concentration in water is doubled.

The test results in Table 2 are: compared between the technical solution of this embodiment and the second technical solution, in the same water environment, this embodiment reduces energy consumption by 40%, and under the same current density, the ozone concentration in water increases by 20% %.

Example 2

Other structures in this embodiment are the same as those in Embodiment 1, except that the first through hole 2-1 of the positive electrode sheet 2 and the second through hole 3-1 of the negative electrode sheet 3 are staggered and axially displaced from each other. The projections do not overlap. By adopting the above structure, the surface contact area between the water body and the positive electrode sheet 2 or the negative electrode sheet 3 can be effectively promoted, which can not only promote the electrolysis efficiency but also prepare ozone water with a higher concentration, so that the electrolyzed product can be discharged circumferentially as soon as possible without inhibiting it. Improve heat dissipation efficiency and reduce energy consumption.

Example 3

Referring to FIGS. 6 to 7 , other structures in this embodiment are the same as those in Embodiment 1, except that the shapes of the cavity 1 , the positive electrode sheet 2 , the negative electrode sheet 3 and the membrane sheet 4 are The outlines are all circular, one side of the diaphragm 4 is parallel to the positive electrode 2, and the other side of the diaphragm 4 is parallel to the negative electrode 3; the positive electrode 2 is provided with a circle The number of the first through holes 2-1 is 6, one of which is arranged at the center of the positive electrode sheet 2, and the remaining 5 are located around the center of the positive electrode sheet 2. Circumferential array; the negative electrode sheet 3 is provided with second through holes 3-1, the number of the second through holes 3-1 is 6, one of which is arranged at the center of the positive electrode sheet 2, and the remaining 5 are wound around the The first through hole 2-1 and the second through hole 3-1 are aligned with each other and the axial projections overlap with each other in accordance with the circular array of the positive electrode sheet 2. By adopting the above structure, the circular cavity 1 is arranged to facilitate the flow of the water body in the annular guide channel 7 in the cavity 1, and the speed of ozone preparation is improved; The surface contact area of the negative electrode sheet 3 can not only promote the electrolysis efficiency, but also prepare ozone water with a higher concentration, so that the electrolysis products can be discharged circumferentially as soon as possible without inhibiting, improving the heat dissipation efficiency and reducing the energy consumption.

Example 4

Referring to FIG. 8 , other structures in this embodiment are the same as those in Embodiment 1, except that the water inlet assembly 5 is arranged at one end of the cavity 1 close to the negative electrode plate 3 , and the spring 6 is arranged at The cavity 1 is close to one end of the positive electrode sheet 2 , and a water flow distribution space 8 is formed between the negative electrode sheet 3 and the water inlet. That is, the negative electrode sheet 3 is arranged at the water inlet end of the cavity 1 , and the positive electrode sheet 2 is arranged at the water outlet end of the cavity body 1 . With the above structure, the negative electrode sheet 3 is close to the water inlet, and the flow velocity of the water inlet end of the annular diversion channel 7 is faster, which is conducive to taking away the negative electrode sheet 3 to generate hydrogen, and at the same time, it also has a better heat dissipation effect on the negative electrode sheet 3, so that the negative electrode The fouling problem in the sheet 3 is solved, and with the reduction of the fouling, the voltage tends to be stable, which is beneficial to prolong the service life of the negative electrode sheet 3 .

Example 5

Other structures in this embodiment are the same as those in Embodiment 1, except that the first through holes 2-1 of the positive electrode sheet 2 and the second through holes 3-1 of the negative electrode sheet 3 can also be triangular , any one of rectangle, trapezoid, square, parallelogram, rhombus, and irregular shape.

Example 6

The other structures in this embodiment are the same as those in Embodiment 1, except that the buffer assembly is a magnetic device, and the magnetic field generated by the magnetic device acts on the electrode sheet to generate an axial force on the electrode sheet, which is used to balance the electrode sheet The impact force of the water flow makes it in a balanced state. For example, when the negative electrode piece needs to be set to a movable state, the same magnets are arranged on the inner wall of the cavity and the negative electrode piece to realize the above function.

The above are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above-mentioned contents, and any other changes, modifications, substitutions, and combinations made without departing from the spirit and principle of the present utility model , simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present invention.

Claims (15)

1. An electrolytic ozone generator, comprising a cavity, an electrode sheet and a diaphragm that are arranged in the cavity, wherein the electrode sheet comprises a positive electrode sheet and a negative electrode sheet, and the diaphragm is arranged on the positive electrode between the film and the negative electrode; wherein, the two ends of the cavity are respectively provided with a water inlet and a water outlet; one side of the diaphragm is parallel to the positive electrode, and the other side of the diaphragm is opposite to the other side of the diaphragm. The negative electrode sheets are parallel to each other; it is characterized in that, the positive electrode sheet and/or the negative electrode sheet are provided with through holes, and the diaphragm is a non-through hole diaphragm; the positive electrode sheet, the negative electrode sheet and the diaphragm are An annular diversion channel is arranged between the periphery and the inner wall of the cavity; a water flow distribution space is arranged between the water inlet and the electrode sheet at the water inlet end, and the water flow distribution space is respectively connected with the annular diversion channel and the inlet. The through holes on the electrode sheet at the water end are connected; the positive electrode sheet and the negative electrode sheet are electrically connected through the water body flowing through them. 2 . The electrolytic ozone generator according to claim 1 , wherein the end face of the positive electrode sheet faces the water inlet, and the end face of the negative electrode sheet faces the water outlet. 3 . 3. An electrolytic ozone generator according to claim 1 or 2, wherein the electrolytic ozone generator further comprises a water inlet assembly located at the water inlet end of the cavity; the water inlet assembly comprises A water inlet pipe and an adjustment port arranged on the water inlet pipe for adjusting the speed and pressure of the water flow, one end of the water inlet pipe is connected with the water source, and the other end is connected with the water inlet; the water body branched from the adjustment port is returned to the the water source. 4 . The electrolytic ozone generator according to claim 3 , wherein a steel ball with notches for regulating water flow is provided in the adjustment port, and the water flow is adjusted by replacing steel balls with different sizes of notches. 5 . 5 . The electrolytic ozone generator according to claim 1 , wherein the through holes of the positive electrode sheet and the negative electrode sheet are aligned with each other and their axial projections overlap. 6 . 6 . The electrolytic ozone generator according to claim 1 , wherein the through holes of the positive electrode sheet and the negative electrode sheet are mutually staggered and the axial projections do not overlap. 7 . 7. An electrolytic ozone generator according to any one of claims 1, 2 or 4, characterized in that there are multiple through holes between the positive electrode sheet and the negative electrode sheet. 8. a kind of electrolytic ozone generator according to any one of claim 1,2 or 4, it is characterized in that, the through hole area of described positive electrode sheet or negative electrode sheet accounts for the total area of described positive electrode sheet or negative electrode sheet 5%-80%. 9. An electrolytic ozone generator according to any one of claims 1, 2 or 4, characterized in that, between the positive electrode sheet or the negative electrode sheet and the inner wall of the cavity, a device for the The positive plate or the negative plate is a displacement buffer for displacement buffering. 10 . The electrolytic ozone generator according to claim 9 , wherein the displacement buffer zone is provided with a buffer component for buffering the water pressure of the positive electrode sheet or the negative electrode sheet. 11 . 11 . The electrolytic ozone generator according to claim 10 , wherein the buffer component is an elastic member, the elastic member is axially arranged, one end acts on the positive electrode sheet or the negative electrode sheet, and the other end acts on the positive electrode sheet or the negative electrode sheet. 12 . on the inner wall of the cavity. 12 . The electrolytic ozone generator according to claim 11 , wherein the elastic member is any one of a spring, a tower spring or a shrapnel. 13 . 13 . The electrolytic ozone generator according to claim 1 , wherein the membrane is a PEM membrane. 14 . 14. A kind of electrolytic ozone generator according to claim 1, is characterized in that, the through hole of described positive electrode sheet and/or described negative electrode sheet is circle, triangle, rectangle, trapezoid, square, parallelogram, Either a rhombus or an irregular shape. 15. a kind of electrolytic ozone generator according to any one of claim 1,2 or 4, is characterized in that, described negative electrode piece is stainless steel, carbon material, metal material, metal oxide, non-metal conductive material and any one of the composite materials; the positive electrode sheet material is any one of diamond, platinum, titanium, electrolytic water electrode wear-resistant materials, conductive ceramics, semiconductors, carbon materials and graphite materials.

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